Does the PIN 14 tie to ground need to be cut to get 80hz output?

Yes, I found that it os easier to desolder the chip and bend the pin.

How to increase the speed of the readings?

Lift pin 15 and connect it to VCC,but be aware thet the reading may be more noisy at 80Hz. And you will have to use data smoothing and a lot of rolling average.

what are the dimensions of the board? What are the screw hole spacings?

The board is 21mm wide by 34mm long. The holes are 3mm in diameter and are spaced 3mm from the end of the board and 1mm from the sides.

Will this sensor interface with the gpio pins on a raspberry pi 3?

Yes it will. I'm pretty sure there is code that exists as well.

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2pcs Hx711 Weight Weighing Load Cell Conversion Module Sensors Ad Module for Arduino Microcontroller

2pcs Hx711 Weight Weighing Load Cell Conversion Module Sensors Ad Module for Arduino Microcontroller

Product ID: 20080867

Details

Brand
DIYmall
Display Type
LCD
Form Factor
Mini
Material
copper
Readout Accuracy
0.1g

📈128x programmable gain amplifier

🔄2 selectable differential input channels

⚖️24-bit high precision ADC

56 zł

Duties & taxes included

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Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Elevate your Arduino projects with precision that weighs in on innovation!

AMPLIFIED ACCURACY - 128x programmable gain amplifier ensures crystal-clear signal amplification.
COMPACT LIGHTWEIGHT - Mini form factor weighing just 5g, perfect for sleek Arduino projects without bulk.
PRECISION AT ITS PEAK - Harness 24-bit ADC for ultra-accurate weight readings down to 0.1g.
DUAL CHANNEL FLEXIBILITY - Switch effortlessly between two differential input channels for versatile sensor setups.
DIY READY COST EFFECTIVE - Ideal front-end module for industrial, kitchen, or hobbyist scales—precision without breaking the bank.

The DIYmall 2pcs HX711 Weight Weighing Load Cell Conversion Module features a 24-bit high-precision ADC with two selectable differential input channels and a 128x programmable gain amplifier. Designed for Arduino microcontrollers, these compact, lightweight modules deliver accurate weight measurements down to 0.1g, making them perfect for DIY scales, industrial controls, and precision sensing applications.

Specifications

ASIN	B010FG9RXO
Best Sellers Rank	#69,068 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Acceleration Sensors
Brand	DIYmall
Brand Name	DIYmall
Customer Reviews	4.3 out of 5 stars 79 Reviews
Display Type	LCD
Form Factor	Mini
Item Weight	5 g
Manufacturer	DIYmall
Material	copper
Material Type	copper
Measurement Type	weight
Model	FBA_FZ0728X2
Part Number	FBA_FZ0728X2
Readout Accuracy	0.1g
Recommended Uses For Product	Packages, Envelopes, Food, Coins, Medicines, Luggage, Fish, Baby, Powder, Animals, Pets, Babies, Adults, Herbs, Beads, Pins, Screws Recommended Uses For Product Packages, Envelopes, Food, Coins, Medicines, Luggage, Fish, Baby, Powder, Animals, Pets, Babies, Adults, Herbs, Beads, Pins, Screws See more
UPC	702795763015
Unit Count	2 Count
Weigh Scale Type	Floor Scale

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